Water-elevator



Patented Dec. 28,1880.

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W. D. MAYFIBLD. Water E1evat`or,

(No Modei.)

Y s E m/ W UNITED STATES PATENT OFFICE.

WILLIAM D. MAYFIELD, OF FORT WORTH, TEXAS.

WATER'ELEVATOR.

SPECIFICATION forming part of Letters Patent No. 235,956, dated December 28, 1880.

Application filed April 8, 1880. (No model.)

To all whom tt may concern: Y

Be it known that I, WILLIAM D. MAY- FIELD, of Fort Worth, in the county of Tarrant and State of Texas, have invented a new and valuable Improvement in Water-Elevators; and I do hereby declare that the following is a full, clear, and exact description of the construction and operation ot'thesame, reference being had to the annexed drawings, making a part of this specification, and to the letters and figures of reference marked thereon.

Figure l ot' the drawings is aside elevation of my improved water-elevator Fig. 2, a side elevation of one ot' the buckets on an enlarged scale; Fig. 3, a sectional view of the same, and Fig. 4 a view of the weighted back to the bucket.

This invention has relation to endless-chain water-elevators; and the object thereof is to provide each bucket with a weighted back; also, in the manner of connecting the chains thereto, so that the necessity of the employ-V ment of a Weighted wheel is obvia-ted, as will be hereinafter described, andI subsequently pointed out in the claims.

In the accompanying drawings, A represents thc frame ofpthe elevator having the usual discharge-spout a.

To the frame A is journaled a wheel, C, operated by a suitable crank, b, said wheel receiving the chains of the buckets, which rest upon the shoulders c.

The buckets D are composed ot' suitable sheet metal, each of said buckets having a Weighted back, E, of malleable metal or iron. The weighted backs E are formed with shoulders d e, for' the reception of chains f, the backs E being soldered to the buckets D after the chain-links j' have been secured in place over the shoulders c, the other end of thelink being connected to the adjacent bucket by rst engaging it with the shoulders d, and securely held in contact therewith by a removable Wedge or key, g.

. By providing the buckets with weighted` backs the necessity of a weighted wheel is entirely dispensed with, and the buckets may be readily separated from each other by the withdrawal of the'wedge or key and disconnecting the chain-link from the shoulder d.

weight to overcome the buoyancy of the air as the cups or buckets descend in the water, and by the peculiar construction of the weighted backs the open chain-links strike against the shoulders, which causes the chain to travel in a circle at the bottom ofthe cistern, so the chain cannot fall together and become tangled, and therefore the necessity of a weighted wheel, heretofore used in water-elevators ot' this class, is not required.

It should be noticed that the weighted back E covers the entire rear portion ot' the bucket, the latter having no sheet-metal back, the back E taking its place, theadvantages gained being simplicity of construction, durability, and the advantages, hereinbefore described, of dispensing with a weighted wheel, which is not obtained by simply securing or riveting bars of cast metal to the sheet-metal backs of the buckets.

Having now fully described my invention, what I claim as new, and desire to secure by Letters Patent, isy l. A sheet-metal elevator-bucket having its entire back Weighted and composed of malleablemetal, substantiallyas and for the purpose set forth.

2. A sheet-metal elevator-bucket having its` entire back weighted, said back being formed with means for connecting the links of the chains, substantially as and for the purpose specied.

3. The bucket D, having weighted back E, formed with shoulders d c, in combination with the open chain-links f and wedge or key g, substantially as and for the purpose de-- The backs E of the buckets are of sufficient 

